126125320

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{12269}}^1$

素因数の和:12537

約数の個数: 32

約数和(自身を含む): 284909400

約数和(自身を除く): 158784080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 12269, 24538, 49076, 61345, 98152, 122690, 245380, 490760, 3153133, 6306266, 12612532, 15765665, 25225064, 31531330, 63062660, 126125320]

約数ペア:

[(1, 126125320), (2, 63062660), (4, 31531330), (5, 25225064), (8, 15765665), (10, 12612532), (20, 6306266), (40, 3153133), (257, 490760), (514, 245380), (1028, 122690), (1285, 98152), (2056, 61345), (2570, 49076), (5140, 24538), (10280, 12269)]